Simultaneous Nadir Overpasses (SNOs) between GOES-16 and FY3D
TLE Epoch: 2020 2 10.  Predictions up to the next  14.0 days:

     Date     Time(GOES-16)   GOES-16 Lat/Lon  FY3D Lat/Lon    Distance(km)  Time Diff(sec)
 02/10/2020   06:43:13   (   0.07, -75.20) (   0.69, -78.04)  322.65                80
 02/11/2020   06:21:38   (   0.07, -75.21) (  -0.34, -73.46)  199.44                80
 02/12/2020   18:43:17   (  -0.07, -75.22) (  -0.87, -78.69)  395.65                80
 02/13/2020   18:27:02   (  -0.07, -75.23) (   0.17, -74.11)  126.99                80
 02/15/2020   06:48:32   (   0.07, -75.25) (   0.99, -79.31)  463.59                80
 02/16/2020   06:26:57   (   0.07, -75.26) (  -0.04, -74.74)   59.18                80
 02/18/2020   18:32:20   (  -0.08, -75.29) (  -0.13, -75.39)   12.05                80
 02/21/2020   06:34:55   (   0.09, -75.33) (   0.25, -76.01)   77.76                80
 02/22/2020   06:13:20   (   0.09, -75.35) (  -0.78, -71.44)  445.92                80
 02/23/2020   18:37:39   (  -0.10, -75.39) (  -0.41, -76.67)  146.86                80